Reading SD cards on a homebrew 6502 computer - tutorial guide and sample code

Prototype for "universal" bus attached FujiNet

A little fail-safe filesystem designed for microcontrollers

RomWBW-based ZMP tree for the NABU option card

This is a CoCo 2 Emulator running on an ESP32-S3-WROOM-1

Ground Station is all-in-one satellite monitoring suite

Recreation / Port of classic CP/M PPIP to "C" for use with the NABU and RetroNET & FreHD (CP/M)

Super optimizing C compiler targeting Z80 processor and CP/M operating system

Trivial Network File System for 8 bit systems

Projects for older Retro Style Systems

A repo of help scripts, jar files, makefile help scripts for building apps.

VC83 BASIC for 6502

Minimal 68000-based single board computer

z180_sbc

Arduino library for faster and smaller digitalWrite(), digitalRead() and pinMode() functions using direct port manipulation for constant pin numbers.

Portable file server with accelerated resumable uploads, dedup, WebDAV, SFTP, FTP, TFTP, zeroconf, media indexer, thumbnails++ all in one file

A Hardware Hacking Tool with Web-Based CLI That Speaks Every Protocol

A 6502 based laptop design

386 Mainboard

SARC 2016 Chipset Based 386SX/486SLC Motherboard

design files for the gametank hardware implementation

The Firmware and 6502-side code for a Raspberry Pi Pico W acting as a smart network bridge via a 65C22 VIA parallel interface.

Commodore BASIC ported to run on a Commodore 1541 disk drive along with the FranKIMstein kernal

x86 PC emulator and x86-to-wasm JIT, running in the browser

The KiCad library used in my projects

This is the classical 65C02 with a MMU extension to enable larger memory and memory protection.

A clock-accurate FPGA clone of the NMOs processor 6502, created on the basis of reverse engineering.